TM 11-6625-3053-14
i.
Repair.
The application of maintenance services 1 or other maintenance actions 2 to restore
serviceability to an item by correcting specific damage, fault, malfunction or failure in a part, subassembly, module
(component or assembly), end item or system.
j.
Overhaul. That maintenance effort (service/action) necessary to restore an item to a completely
serviceable/operational condition as prescribed by maintenance standards in appropriate technical publications (i.e.,
DMWR).
Overhaul is normally the highest degree of maintenance performed by the Army. Over- haul does not
normally return an item to like new condition.
k.
Rebuild. Consists of those services/actions necessary for the restoration of unserviceable equip- ment to
a like new condition in accordance with original manufacturing standards. Rebuild is the highest degree of materiel
maintenance applied to Army equipment. The rebuild operation includes the act of returning to zero those age
measurements (hours/miles, etc.) considered in classifying Army equipments/ components.
B-3.
EXPLANATION OF COLUMNS IN THE MAC, SECTION II.
a.
Column 1, Group Number. Column 1 lists functional group codes numbers, the purpose of which is to
identify components, assemblies, subassemblies, and modules with the next higher assembly.
b.
Column 2, Component/Assembly.
Column 2 contains the names of components, assemblies,
subassemblies, and modules for which maintenance is authorized.
c.
Column 3, Maintenance Function. Column 3 lists functions to be performed on the item listed in Column 2.
(For detailed explanation of these functions, see paragraph B-2).
d.
Column 4, Maintenance Category. Column 4 specifies, by the listing of a work time figure in the
appropriate subcolumn(s), the category of maintenance authorized to perform the function listed in Column 3. This figure
represents the active time required to perform that maintenance function at the indicated category of maintenance. If the
number or complexity of the tasks within the listed maintenance function vary at different maintenance categories,
appropriate work time figures will be shown for each category. The work time figure represents the average time
required to restore an item (assembly, sub- assembly, component, module, end item or system) to a serviceable
condition under typical field operating conditions. This time includes preparation time, troubleshooting time, and quality
assurance/quality con- trol time in addition to the time required to perform the specific tasks identified for the
maintenance functions authorized in the maintenance allocation chart. The symbol designations for the various
categories are as follows:
C ............................................................................ Operator or crew.
O ............................................................................ Organizational maintenance.
F ............................................................................ Direct support maintenance.
H ............................................................................ General support maintenance.
D ............................................................................ Depot maintenance.
e.
Column 5, Tools and Equipment. Column 5 specified, by code, those common tool sets (not individual
tools) and special tools, TMDE, and support equipment required to perform the designated function. The code in this
column is keyed to the tools and test equipment requirements list in Section 11 .
f.
Column 6, Remarks. Column 6 contains, when applicable, a code which is keyed to the remarks contained
in Section IV.
' Services-inspect, test, service, adjust, aline, calibrate or replace.
Actions-welding, grinding, riveting, straightening, facing, remachining, or resurfacing.
B-2